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Select the strongest reducing agent from...

Select the strongest reducing agent from amongest the substances involved in the following half-reactions .
`{:(Cl_(2) (g) + 2e^(-) to 2Cl^(-) (aq) , + 1.36 V) , (Br_(2) (g) + 2e^(-) to 2 Br^(-) (aq) , +1.09V) , (Sn^(2+) + 2e^(-) to Sn , -0.14V):}`

A

`Cl^(-)`

B

`Br^(-)`

C

`Sn`

D

`Sn^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
C
Higher the oxidation potential , stronger is the reduction agent .
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Identify the oxidant the reductant in the following reaction. Cl_(2)(g) + 2Br^(-)(aq) to 2Cl^(-)(aq) + Br_(2)(aq)

E^(@) for Cl_2 (g) +2e^(-)to2Cl^- (aq) is 1.36 V, E^(@) for Cl^- (aq) to1//2cl_2 (g) +e^- is:

Which of the following is the cell reaction that occurs when the following half-cells are combined? I_2 + 2e^(-) to 2I^(-) (1M) , E^@=+0.54 V Br_2+2e^(-) to 2Br (1 M) , E^@=+1.09 V

I2 and Br2 are added to a solution containing Br– and I– ions. What reaction will occur if, I_(2) + 2e^(-) rarr 2I^(-) , E^(0) = + 0.54V and Br_(2) + 2e^(-) rarr 2Br^(-) , E^(0) = +1.09 V?

Standard reduction potentails of the half reactions are given below: F_(2)(g)+2e^(-) rarr 2F^(-)(aq.),, E^(ɵ)= +2.87 Cl_(2)(g)+2e^(-) rarr 2Cl^(-)(aq.),, E^(ɵ)= +1.36 V Br_(2)(g)+2e^(-) rarr 2Br^(-)(aq.),, E^(ɵ)= +1.09 V I_(2)(s)+2e^(-) rarr 2l^(-)(aq.),, E^(ɵ)= +0.54 V The strongest oxidizing and reducing agents respectively are:

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